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RU2013105092A - RADIO COMMUNICATION METHOD, BASE STATION AND USER TERMINAL - Google Patents

RADIO COMMUNICATION METHOD, BASE STATION AND USER TERMINAL Download PDF

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RU2013105092A
RU2013105092A RU2013105092/07A RU2013105092A RU2013105092A RU 2013105092 A RU2013105092 A RU 2013105092A RU 2013105092/07 A RU2013105092/07 A RU 2013105092/07A RU 2013105092 A RU2013105092 A RU 2013105092A RU 2013105092 A RU2013105092 A RU 2013105092A
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pilot
users
signals
subcarrier components
signal
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RU2538760C2 (en
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Цуйоси СИМОМУРА
Дай КИМУРА
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Фудзицу Лимитед
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L23/00—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
    • H04L23/02—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00 adapted for orthogonal signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2637—Modulators with direct modulation of individual subcarriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • H04L27/26526—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation with inverse FFT [IFFT] or inverse DFT [IDFT] demodulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] receiver or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/0012—Hopping in multicarrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

1. Базовая станция в системе радиосвязи, в которой каждый из пользовательских терминалов вместе с передачей сигнала данных в базовую станцию, используя разные частоты полосы передачи данных, которые назначаются базовой станцией, выполняет мультиплексирование с временным разделением пилот-сигнала с сигналом данных и передает результирующий сигнал в базовую станцию, содержащая:блок управления, выполненный с возможностью подачи команды в каждый пользовательский терминал на распределение пилот-сигналов первого и второго пользователей по разным частотам, причем каждый из пилот-сигналов сгенерирован на основе последовательности Задоффа-Чу, и на отображение компонентов поднесущей пилот-сигналов так, что один или более компонентов поднесущей более высоких частот соответствуют одному или более компонентам поднесущей более низких частот в полосе передачи, в отношении пилот-сигналов каждого из первого и второго пользователей.2. Способ радиосвязи в системе радиосвязи, в которой сигналы данных для первого и второго пользователей, соответственно, передаются, используя первую и вторую группы поднесущих, и пилот-сигналы для первого и второго пользователей мультиплексируются с сигналами данных для этих пользователей, используя мультиплексирование с временным разделением, причем упомянутый способ содержит этапы, на которых:располагают пилот-сигнал первого пользователя на частотах, отличающихся от частот пилот-сигнала второго пользователя; иотображают компоненты поднесущей пилот-сигналов так, что один из компонентов поднесущей более высоких частот соответствует одному из компонентов поднесущей более низких 1. The base station in a radio communication system in which each of the user terminals, together with the transmission of the data signal to the base station, using different frequencies of the data band that are assigned by the base station, performs time division multiplexing of the pilot signal with the data signal and transmits the resulting signal to a base station, comprising: a control unit configured to send a command to each user terminal to distribute pilot signals of the first and second users p different frequencies, each of the pilot signals being generated based on the Zadoff-Chu sequence, and displaying the pilot subcarrier components so that one or more higher frequency subcarrier components correspond to one or more lower frequency subcarrier components in the transmission band, regarding the pilot signals of each of the first and second users. 2. A radio communication method in a radio communication system in which data signals for the first and second users are respectively transmitted using the first and second groups of subcarriers and pilot signals for the first and second users are multiplexed with data signals for these users using time division multiplexing, wherein said method comprises the steps of: arranging a pilot signal of a first user at frequencies different from the frequencies of a pilot signal of a second user; and display the pilot subcarrier components so that one of the higher frequency subcarrier components corresponds to one of the lower subcarrier components

Claims (4)

1. Базовая станция в системе радиосвязи, в которой каждый из пользовательских терминалов вместе с передачей сигнала данных в базовую станцию, используя разные частоты полосы передачи данных, которые назначаются базовой станцией, выполняет мультиплексирование с временным разделением пилот-сигнала с сигналом данных и передает результирующий сигнал в базовую станцию, содержащая:1. The base station in a radio communication system in which each of the user terminals, together with the transmission of the data signal to the base station, using different frequencies of the data band that are assigned by the base station, performs time division multiplexing of the pilot signal with the data signal and transmits the resulting signal to a base station containing: блок управления, выполненный с возможностью подачи команды в каждый пользовательский терминал на распределение пилот-сигналов первого и второго пользователей по разным частотам, причем каждый из пилот-сигналов сгенерирован на основе последовательности Задоффа-Чу, и на отображение компонентов поднесущей пилот-сигналов так, что один или более компонентов поднесущей более высоких частот соответствуют одному или более компонентам поднесущей более низких частот в полосе передачи, в отношении пилот-сигналов каждого из первого и второго пользователей.a control unit configured to send a command to each user terminal to distribute the pilot signals of the first and second users to different frequencies, each of the pilot signals being generated based on a Zadoff-Chu sequence, and to display the components of the pilot subcarrier so that one or more higher frequency subcarrier components correspond to one or more lower frequency subcarrier components in the transmission band, in relation to the pilot signals of each of the first and second users. 2. Способ радиосвязи в системе радиосвязи, в которой сигналы данных для первого и второго пользователей, соответственно, передаются, используя первую и вторую группы поднесущих, и пилот-сигналы для первого и второго пользователей мультиплексируются с сигналами данных для этих пользователей, используя мультиплексирование с временным разделением, причем упомянутый способ содержит этапы, на которых:2. A radio communication method in a radio communication system in which data signals for the first and second users, respectively, are transmitted using the first and second groups of subcarriers, and pilot signals for the first and second users are multiplexed with data signals for these users using time division multiplexing separation, said method comprising the steps of: располагают пилот-сигнал первого пользователя на частотах, отличающихся от частот пилот-сигнала второго пользователя; иpositioning the pilot signal of the first user at frequencies different from the frequencies of the pilot signal of the second user; and отображают компоненты поднесущей пилот-сигналов так, что один из компонентов поднесущей более высоких частот соответствует одному из компонентов поднесущей более низких частот, причем пилот-сигналы генерируют, используя последовательность Задоффа-Чу.display the pilot subcarrier components so that one of the higher frequency subcarrier components corresponds to one of the lower frequency subcarrier components, the pilot signals being generated using the Zadoff-Chu sequence. 3. Способ беспроводной связи для передачи сигналов данных первого и второго пользователей, используя первую и вторую группы поднесущих, соответственно, и передачи пилот-сигналов первого и второго пользователей посредством мультиплексирования пилот-сигналов с сигналами данных, причем упомянутый способ содержит этапы, на которых:3. A wireless communication method for transmitting data signals of the first and second users using the first and second groups of subcarriers, respectively, and transmitting pilot signals of the first and second users by multiplexing the pilot signals with data signals, said method comprising the steps of: распределяют пилот-сигналы первого и второго пользователей по разным частотам, причем каждый из пилот-сигналов генерируют на основе последовательности Задоффа-Чу; иdistributing the pilot signals of the first and second users at different frequencies, wherein each of the pilot signals is generated based on a Zadoff-Chu sequence; and отображают компоненты поднесущей пилот-сигналов так, что один или более компонентов поднесущей более высоких частот и один или более компонентов поднесущей более низких частот в полосе передачи становятся идентичными, в отношении пилот-сигналов каждого из первого и второго пользователей.display the pilot subcarrier components so that one or more higher frequency subcarrier components and one or more lower frequency subcarrier components in the transmission band become identical with respect to the pilot signals of each of the first and second users. 4. Мобильный терминал в системе связи, в которой первый и второй мобильные терминалы передают сигналы данных первого и второго пользователей, используя первую и вторую группы поднесущих, соответственно, и передают пилот-сигналы первого и второго пользователей посредством мультиплексирования пилот-сигналов с сигналами данных, причем упомянутый мобильный терминал содержит:4. A mobile terminal in a communication system in which the first and second mobile terminals transmit data signals of the first and second users using the first and second groups of subcarriers, respectively, and transmit the pilot signals of the first and second users by multiplexing the pilot signals with data signals, wherein said mobile terminal comprises: блок генерации пилот-сигнала, выполненный с возможностью генерирования пилот-сигнала на основе последовательности Задоффа-Чу;a pilot signal generating unit configured to generate a pilot signal based on a Zadoff-Chu sequence; блок распределения, выполненный с возможностью распределения пилот-сигнала по заданным частотам так, что пилот-сигналы первого и второго пользователей распределены по разным частотам;a distribution unit, configured to distribute the pilot signal at predetermined frequencies so that the pilot signals of the first and second users are distributed at different frequencies; блок отображения, выполненный с возможностью отображения компонентов поднесущей пилот-сигнала так, что один или более компонентов поднесущей более высоких частот и один или более компонентов поднесущей более низких частот в полосе передачи становятся идентичными, в отношении пилот-сигналов каждого из первого и второго пользователей; иa display unit configured to display the pilot subcarrier components such that one or more higher frequency subcarrier components and one or more lower frequency subcarrier components in the transmission band become identical with respect to the pilot signals of each of the first and second users; and блок передачи, выполненный с возможностью передачи сигнала данных и пилот-сигнала. a transmission unit, configured to transmit a data signal and a pilot signal.
RU2013105092/07A 2006-12-22 2013-02-06 Radio communication method, basic station and user terminal RU2538760C2 (en)

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